Car-brake.



No. 823,285. PATENTED JUNBIZ, 1906. C. B. MEAD & R. S. FULLERTON'.

CAR BRAKE.

APrLIoATIoN FILED PEB/.28.19o.

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UNITED srArEsf 'PATENT oEEiioE. i

CHARLES B. MEAD AND ROBERT S. FULLERTON, OF'EAST PALESTINE, OHIO,ASSIGNORS OF ONE-THIRD TO JAMES V. MURPHY, OF EAST PALESTINE, OHIO.

CAR-BRAKE.

INO. 823,285.

Specification of Letters Patent.

Patented June 12, 1906.

To all whom t may concern:

4Be it lknown that we, CHARLES B. MEAD and RoBERr S. FULLERTON, citizensof the United States of America, residing at East Palestine, in thecounty of Columbiana and State of Ohio,have invented certain new anduseful Improvements in Car-Brakes, of which the following is aspecification, reference being had therein to the accompanying draw- :oings.

This invention relates to certain new and useful improvements incarbrakes; and the ,invention relates more particularly to brakesadapted to be used in connection with street- :5 cars.

The primary object of this invention is to provide a novel form ofbrakes for street-cars which are thrown into operation when the carbecomes uncontrollable or should it be :o desired to quickly stop a car.

Our invention aims to provide a car-brake which will be extremely simplein construction, strong and durable, comparatively inexpensive tomanufacture, and highly effir 5 cient for the purposes for which it isused. The car-brake is constructed whereby it may be operated fromeither end of a car to brake either one of the trucks thereof, and inthis connection the brakes serve functionally as ;O chock-blocks forretarding the forward or rearward movement of a car, said blocksengaging the periphery of the wheels of the trucks and the tread of therails upon which the wheels move.

; 5 The detail construction entering into our invention will behereinafter more fully-described and claimed, and, referring to thedrawings accompanying this application, like numerals of referencedesignate correspond.-

lo ing parts throughout the several views, in

which* Figure 1 is aside elevation of a car equipped with our improvedbrakes. Fig. 2 is a fragmentary plan of the trucks thereof, illustratp5ing our improved brakes. Fig. 3 is a perspective view of one of theshoes of the brakes; and Fig. 4 is a lan of one of the shoes,illustrating a slight y-Inodified form of construction.

go In the accompanying drawings we have illustrated a conventional formof car 1, supported upon trucks 2 and 3, said trucks being of theordinary type commonly employed in connection with street-cars. In thepresent illustration we have shown the trucks and car mounted upon therails 4 of a track, and in connection with these rails and the trucks ofa car we use our improved brake.

The brake consists of four blocks 5 5 and 5 5, two blocks being used inconnection with each truck, preferably upon the inner wheels thereof.The body portion of each block is preferably constructed of iron orsteel and is provided with a curved surface 6 and aiiat surface 7. Thecurved surface 6 of each block is recessed, as at 8, to accommodate thecurved end 9 of a shoe which is adapted to fit upon each block. The shoeis provided with a str-aight portion 10, adapted to fit upon the flatportion 7 of each block, and with a right-angular extension 11, adaptedto engage the rear face of the block. The shoes are preferablyconstructed of case-hardened steel and are secured to the blocks byscrewbolts 12 12, passed through the right-angular extensions 11 intothe blocks 5. The lower faces of the shoes are serrated or knurled, asat 14, the serrations adjacent the curved ends 9 Aof the shoes being ofa finer degree than the remainder of the serrations, the object of whichwill be presently described. In lieu of the serrations 14 the lower faceof the shoe may be notched or roughened, as at 15 but the mode ofroughening the shoes is immaterial so long as a gripping-surface isprovided upon said shoes.

The blocks 5 5 and 5 5 are connected together by transverse shafts 16and 17, said shafts being suspended by links 19 19 from brackets 20 20,carried by the trucks 2 and 3. The blocks 5 5 and 5 5 are furthersupported by rods 21 and 22, said rods extending to the ends of the car,where they are pivotally connected to operatinglevers 23 and 24,respectively. The operating-levers are pivotally mounted upon shafts 2525, mounted in depending brackets 26 26, carried by the car 1.

The rods 21 and 22, together with the links 19, support the blocks 5 5and 5 5 in an elevated position in close proximity to the inner wheelsof the trucks 2 and 3, and the particular shape of said blocks permitsof a portion of the shoes carried by said blocks eX- IOO tending beneaththe Wheels in close prox-v imity to the rails 4, upon which the tracks 2and 3 move. Assuming that the car is moved to the left and has becomeuncontrollable, the operating-lever 23 is manipulated to lower theblocks 5 5. These blocks are adapted to simultaneously impinge theWheels of the truck 3 and the rails 4, the curved surfaces 6 of saidblocks engaging the peripheries of the Wheels of the truck 3, While theserrated surfaces 14 of the shoes of said blocks engage the treads ofthe rails 4, over Which the trucks move. The serrated surfaces 14 of theshoes are adapted to engage in the treads of the rails 4 and preventsaid shoes from sliding upon said rails, especially When the shoes andblocks 5 5 are engaged by Wheels of the truck 3. By providing theinnermost ends of the shoes with finer serrations than the outer ends amore positive grip is taken upon the treads of the rails immediatelyupon the blocks 5 5 beinglowered, and when the Wheels of the truck 3ride upon said blocks the entire serrated surfaces of the Wheels of saidtrucks will be forced into engagement with the rails, and the carequipped With the brakes Will be brought to a speedy standstill.

rlhe blocks 5 5 are operated in connection With the truck 2 when the caris going in a reverse direction to that just described, and theoperating mechanism of said blocks is similarly manipulated to theoperating mechanism of the blocks 5 5.

We do not care to conne ourselves to the specific shape of the blocks ofour improved brakes, but attach considerable importance to the shoescarried by said brakes.

Such changes as are permissible by the appended claims may be resortedto Without departing from the spirit and scope of the invention.

What We claim, and desire to securebyLetters Patent, is-

1. In a car-brake, the combination With a car, and the trucks thereof,of blocks suspended from the trucks of said car in close proximity tothe Wheels of said truck, serrated shoes carried by said blocks, saidshoes having each an upwardly-extending curved end engaging the frontface of the4 block and a right-angular extension engaging the rear faceof the block and means operated from the ends of said car to move saidshoes into engagement with said Wheels, and the rails upon Which saidWheels travel, substantially as described.

2. In a car-brake, the combination With the trucks and Wheels upon Whichthe trucks are mounted, of a plurality of brackets carried by eachtruck, links pivotally mounted in said brackets, a shaft carried by thelinks of each truck, blocks mounted on the ends of each of said shafts,shoes carried by said blocks and. adapted to contact With' the Wheelsand With the tracks7 a rod connected to the shoe-carrying shaft of eachtruck and extending over the shoe-carrying shaft of the adjacent truck,and operating the levers connected to said rods and extending from beloWthe bottom of the car to labove the bottom of the same, substantially asdescribed.

In testimony whereof We affix our signatures in the presence of tWoWitnesses.

CHARLES B. MEAD. ROBERT S. FULLERTON.

Witnesses:

L. D. OVERLANDER. Jol-IN W. HooN.

